PMID- 35595452 OWN - NLM STAT- MEDLINE DCOM- 20220524 LR - 20220524 IS - 1875-6263 (Electronic) IS - 1028-4559 (Linking) VI - 61 IP - 3 DP - 2022 May TI - High-level mosaicism for 45,X in 45,X/46,X,idic(Y)(q11.2) at amniocentesis in a pregnancy with a favorable outcome and postnatal progressive decrease of the 45,X cell line. PG - 528-531 LID - S1028-4559(22)00092-4 [pii] LID - 10.1016/j.tjog.2022.03.024 [doi] AB - OBJECTIVE: We present prenatal diagnosis of high-level mosaicism for 45,X in 45,X/46,X,idic(Y)(q11.2) at amniocentesis in a pregnancy with a favorable outcome and postnatal progressive decrease of the 45,X cell line. CASE REPORT: A 36-year-old, gravida 4, para 3, woman underwent amniocentesis at 17 weeks of gestation because of advanced maternal age. Amniocentesis revealed a karyotype of 45,X[22]/46,X,idic(Y)(q11.2)[4]. Prenatal ultrasound was unremarkable, and the fetus had normal male external genitalia. Repeat amniocentesis was performed at 20 weeks of gestation, and the second amniocentesis revealed a karyotype of 45,X[24]/46,X,idic(Y)(q11.2)[3]. Simultaneous interphase fluorescence in situ hybridization (FISH) analysis on uncultured amniocytes revealed that 60% (62/103 cells) were Y-deleted cells. After genetic counseling, the parents decided to continue the pregnancy, and a 3020-g male baby was delivered with a body length of 52 cm, normal male genital organs and no phenotypic abnormalities. The karyotypes of cord blood, umbilical cord and placenta were 45,X[20]/46,X,idic(Y)(q11.2)[20], 45,X[31]/46,X,idic(Y)(q11.2)[9] and 45,X[40], respectively. At age one month, FISH analysis on urinary cells and buccal mucosal cells revealed 11.5% (7/61 cells) and 13.6% (16/118 cells), respectively for mosaicism for the Y-deleted cells. At age five month, the karyotype of peripheral blood was 45,X[9]/46,X,idic(Y)(q11.2)[31]. FISH analysis on buccal mucosal cells showed no abnormal Y-deleted cell (0/101 cells). At age 11 month, the karyotype of peripheral blood was 45,X[5]/46,X,idic(Y)(q11.2)[35]. FISH analysis on 102 buccal mucosal cells showed no abnormal signals. The infant was doing well with normal physical and psychomotor development. CONCLUSION: High-level mosaicism for 45,X in 45,X/46,X,idic(Y)(q11.2) at amniocentesis can be associated with a favorable outcome and progressive decrease of the 45,X cell line. CI - Copyright (c) 2022. Published by Elsevier B.V. FAU - Chen, Chih-Ping AU - Chen CP AD - Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Institute of Clinical and Community Health Nursing, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. Electronic address: cpc_mmh@yahoo.com. FAU - Chern, Schu-Rern AU - Chern SR AD - Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan. FAU - Chen, Shin-Wen AU - Chen SW AD - Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan. FAU - Wu, Fang-Tzu AU - Wu FT AD - Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan. FAU - Lee, Chen-Chi AU - Lee CC AD - Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan. FAU - Chen, Li-Feng AU - Chen LF AD - Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan. FAU - Chen, Yun-Yi AU - Chen YY AD - Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan. FAU - Wang, Wayseen AU - Wang W AD - Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan. LA - eng PT - Case Reports PL - China (Republic : 1949- ) TA - Taiwan J Obstet Gynecol JT - Taiwanese journal of obstetrics & gynecology JID - 101213819 SB - IM MH - *Amniocentesis MH - Cell Line MH - Comparative Genomic Hybridization MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotype MH - Male MH - *Mosaicism MH - Pregnancy MH - Trisomy OTO - NOTNLM OT - 46,X,idic(Y)(q11.2) OT - Amniocentesis OT - Isodicentric Yp OT - Mosaic 45,X/46,X,idic(Yp) OT - Turner syndrome COIS- Declaration of competing interest The authors have no conflicts of interest relevant to this article. EDAT- 2022/05/21 06:00 MHDA- 2022/05/25 06:00 CRDT- 2022/05/20 21:07 PHST- 2022/03/03 00:00 [accepted] PHST- 2022/05/20 21:07 [entrez] PHST- 2022/05/21 06:00 [pubmed] PHST- 2022/05/25 06:00 [medline] AID - S1028-4559(22)00092-4 [pii] AID - 10.1016/j.tjog.2022.03.024 [doi] PST - ppublish SO - Taiwan J Obstet Gynecol. 2022 May;61(3):528-531. doi: 10.1016/j.tjog.2022.03.024.